Plow.



L. STEPHENS.

1 PLOW. APPLICATION FILED FEB. 25, 1911. 1 1,047,850 I ,Patented Dec. 17, 1912.

2 SHEETS-SHEET 1.

5M awym L. STEPHENS.

PLOW.

' APPLIGATION FILED FEB. 25, 1911. 1,047,850. Patented Dec. 17,1912.

2 SHEETS-SHEET 2.

' 31mm I Zyzwfiia $622.5-

COLUMBIA PLANOGRAPH co. WASHINGTON, u. :4

- LYNN STEPHENS, on COCKRUM, ivrississirrtrLow.

To all whom it may concern:

Be it lmown that I, LYNN S'rnPnENs, a

citizen of the United States of America, re-

siding at Cockrum, in the county of De Soto and State of Mississippi,-have invented new and useful Improvements in Plows, of which the following. is a specification,

This invention relates to that class of plows which are known as double ormiddle reakers, and the principal object of the invention is to-provide a frog or supporting tion' with which mold boards and wings of member of simple and improved construcvarious kinds and dimensions may be connected for operation in a simple and efiicient manner.

A further object of the invention is. to provide the frog with means for the attachmentof an adjustable foot member carrying the plow and to hold the same in a straight line. J

With these and other ends'in view which will readily appear as the nature of the invention is better understood, the same consists in the improved construction and novel arrangement and combination ofparts which will be hereinafter fully described and particularly pointed out in the claim.

In the accompanying drawings has been illustrated a simple and preferred formof the invention, it being, however, understood that no limitation is necessarily made to the precise structural detailstherein exhibited, but that changes,'alterations and modifications within the scope of the claim may be resorted to when desired.

Fig. 2 is a perspective view of the frog de-. tached. Fig. 3 is a perspectiveview of the frog, showing the same inverted. Fig. 4c is a front elevation,' showing a portion ofthe plow standard and frog, and showingalso the middle breaking mold board' and wings in position. Fig. 5 is a similar view, showing a cultivating point and wings substituted for the breaking point and wings." "Fig.6 is a similar view, showingthe middlebreak- Specification of Letters Patent. Application filed February 25, 1911. Serial No. 610,805.

mg a knife or rudder. blade to assist in steerr,

ing'mold member. in position upon the plow, together wlth potato diggingwings'. l ig. 7 1s a detallview, showing cultivating wings of a somewhat different construction.

Patented Dec. 17,1912 I Corresponding parts in the several figures are denoted like characters of reference. The plow beam 1 having the stock or standardQ andthe handles 3.1nay be of the a usual or of any suitable and well known constructlon.

v The frog or supporting member 4: is pref erably cast in a single. piece of malleable iron and of approximately triangular shape,

said frog being secured upon the standard by means of a bolt 5 with the apex of the triangle extending downward and forward, as shown. The triangular plate, which constitutes the frog, is suitably curved'in cross section, and itisprovided on its upper. face with a reinforcement orthickened portion 6 of trapezoidalcontour, said reinforcement having parallel upper and lower edges 7 8 and upwardly divergent side edges 9, 9, and the several edges presenting'clearly defined shoulders, as will bebest-seenyin Fig. 2 of the drawings. Apertures or .bolt holes 10, 10 are formed in the body of the plate or frog adjacent to the-lower corners of the same and. beneath the lower edge thereof, and additionalapertures o-r bolt holes. 11, 11 are formed adjacent tothe side edges of the reinfojrcement'ti. The upper edge 7 of said reinforcement is spaced from the upper edge ofthe frog plate, and the latter is provided with a notch 10 midway be-.

tween its. upper corners to engage the plow stock or standard.

' The frog plate t is provided on its under; side with a lug 12 which is transversely apertured for the passage of vabolt 13. Said.

pivotally mounted upon a bolt 16. An addition'al bolt 17 which extends through the heel ends ofthe side members of the plow foot alsoextendsthrough the lower ends of bracemenibers .18, the upper ends of which 7 are provided with slots" 19 adjustably connected by means of a bolt 20 with the plow beam, thus permitting the rear end of the plow foot to be vertically adjusted. The bolt 17 also extends through a slot 21 in the knife or rudder blade 15, which latter is thus capable of being adjusted vertically independently of the adjustment of the plow foot by means ofthe standards.

The device maybe used in connection with mold boards of different shape and adapted to different uses. Thus, 22 designates a mold board constituting an ordinary middle breaker, and 23 a cultivator blade.

Each of these blade-s has a straight upper edge, the length of which exceeds that of the lower edge of the reinforcement 6 upon the frog plate. Each of these blades is also provided adjacent to the upper edge thereof with apertures 24: for the passage of bolts, said apertures being adapted to register with the apertures 10 in the frog plate with which the blades 22 and 23 may thus be interchangeably connected. The shape and dimensions of the blades are such that when either blade is mounted in position upon the frog plate, the upper edge thereof shall snugly engage the shoulder formed by the lower edge of the reinforcement 6 upon the frog plate. The said blades are also made of a thickness coinciding with the thickness of the reinforcement, so that when the parts are assembled, the upper faces of the blade and the reinforced portion will present a smooth unobstructed surface.

The breaker wings 25, shown in Fig. 4, the mold boards 26, shown in Fig. 5, the potato digging wings 27, shown in Fig. 6, and the special cultivator wings 28, shown in Fig. 7, are each provided at their lower ends with angular corners 29 presenting lower edges 30 and side edges 31 adapted to engage and abut, respectively, upon the upper edge of the breaker blade 22 or the cultivator blade 23, as the case may be, and upon the side edges 9 of the reinforcement 6 of the frog plate. Said wings are also provided adjacent to their lower corners with apertures 32 adapted to register with the apertures 11 in the frog plate with which said wings are firmly connected by means of bolts 33 passing therethrough. It will be observed that owing to the particular construction shown and described, each wing is capable of being firmly secured by means of a single bolt, being provided with two edges that abut upon the upper edge of a fixed blade and the side edge of the reinforcement 6, thus preventing the wing from rocking upon the bolt or from being otherwise displaced. The several wings are also made of such thickness that when the parts are assembled, their upper faces will coincide with the upper faces of the blade 22 or 23 that is being used and the upper face of the reinforcement 6, so that a smooth and unobstructed working face will be presented. The wings 25, 26 and 27, shown in Figs. 4, 5 and 6, respectively, are made of greater width than the special cultivator wings 28, shown in Fig. 7, said blades being provided with extended portions 34 overhanging the reinforcement 6 of the frog plate and abutting upon the upper edge thereof. By this construction wings of greater width may be used, said wings being reinforced and held very firmly in position by the connecting bolts.

In connection with this invention a colter 35 is provided, said colter extending through a slot in the plow beam where it is secured by means of a clamp ring 36 and a set screw 37.

From the foregoing description taken in connection with the drawings hereto annexed, the operation and advantages of this invention will be readily understood by those skilled in the art to which it appertains. The construction of the improved plow is simple and inexpensive. The frog plate constructed as herein described may be used in connection with blades or mold boards and with wings of various shapes and dimensions, and the improved implement may thus be used for a variety of purposes for which heretofore it has been customary to use separate implements, thus lessening the expense and providing an implement which may be conveniently stored in small space when not in use.

Having thus described the invention, what is claimed as new, is

In a plow, a frog plate provided upon its upper side with a thickened portion forming a reinforcement of trapezoidal contour having upper and lower edges parallel to and spaced from the upper edge of the frog plate and upwardly divergent side edges spaced from the side edges of the frog plate, said reinforcement having its lower edge spaced from the lower edge of the frog plate, said frog plate being provided with apertures below the lower edge of the reinforcement and adjacent to the side edges of the latter, in combination with a mold board having an upper edge of greater length than the lower edge of the reinforcement upon which it abuts, and wings having annular corners, the lower and the side edges of each of which abut, respectively, upon the upper edge of the mold board and upon the side edge of the reinforcement, said corner of each wing being sustained in position with its lower edge abutting the upper edge of the mold board by the portion of the frog plate extending past the corresponding end of the reinforcement and forming a support for said meeting edges, said mold board being provided with apertures alining with' apertures in the frog plate adjacent to .the In testimony whereof I aflix my signature side edges of the reinforcement, and asin presence of'two witnesses.

sembling bolts whereby the mold board and LYNN STEPHENS the wings are secured upon the frog plate,

the upper faces of the mold board and of Witnesses:

the wings coinciding with the upper face of S. T. STEWART, the reinforcement upon the frog plate. N. E. WILROY.

Copies c! this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, 20,0. V 

